Steel bar grating with high strength and firm structure is made up of carbon steel, aluminum
steel or stainless steel. According to the manufacturing methods, it can be divided into four
types: welded, press-locked, swage-locked and riveted gratings. According to the surface
shapes, it can be divided into smooth and serrated gratings. With various styles and sizes
for choice, steel gratings are widely used in everyday life, such as stair treads, walkways,
platforms, floors, various covers, wheeled equipment, security screens, heavy duty constructions and so on.
Materials of Steel Grating:
1) Carbon Steel Smooth Flat Bars,Carbon Steel Serrated Bars,I-Type Steel Bars.
2) Steel Twisted Square Cross Bars,Steel Round Cross Bars.
3)Stainless Steel 304 Grade Flat Bars, Stainless Steel 304 Grade Round Bars.
Surface Treatment Finishing of Steel Grating:
Generally Steel Grating is made with hot-dipped galvanized. Also zinc coating can be made according to the client's requirement.
Steel Grating can be called hot-dip galvanized steel grating,stainless steel gratings.Beautiful surface appearance and excellent performance in industry construction projects.

| Table: Popular Specification of Steel Metal Grating | ||||
| Item | Specifications of Bearing Bar (mm) | Diameter of Cross Bar (mm) | Pitch of Bearing Bar (mm) | Pitch of Cross Bar (mm) |
| 253 | 25x3 | 6 | 20,30,40,50 | 50,100 |
| 254 | 25x4 | 6,8 | 20,30,40,50 | 50,100 |
| 255 | 25x5 | 6,8 | 20,30,40,50 | 50,100 |
| 304 | 30x4 | 8 | 20,30,40,50 | 50,100 |
| 305 | 30x5 | 8 | 20,30,40,50 | 50,100 |
| 355 | 35x5 | 8 | 20,30,40,50 | 50,100 |
| 404 | 40x4 | 8 | 20,30,40,50 | 50,100 |
| 405 | 40x5 | 8 | 20,30,40,50 | 50,100 |
| 455 | 45x5 | 8 | 20,30,40,50 | 50,100 |
| 505 | 50x5 | 8 | 20,30,40,50 | 50,100 |
| 605 | 60x5 | 8 | 30,40,50,60 | 50,100 |
| 705 | 70x5 | 8 | 30,40,50,60 | 50,100 |


